Photoproduction of pentaquarks states at the LHC

Abstract

In this paper we investigate the production of pentaquark states in the photon -- proton interactions present in hadronic collisions at the RHIC and LHC. We consider two phenomenological models for the $J/\Psi$ photoproduction that consider the presence of the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ resonances in the $s$ -- channel of the $\gamma p\to J/\Psi p$ reaction. The rapidity distribution is estimated for $pA$ collisions at the RHIC and LHC. Predictions for $pPb$, $PbAr$ and $PbHe$ fixed -- target collisions at the LHC are also presented. We demonstrate that the experimental analysis of the $J/\Psi$ photoproduction in fixed -- target collisions can provide complementary and independent checks on these states, and help to understand their underlying nature.

arXiv comment6 pages, 4 figures. Improved version published in Physics Letters B

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• Semi-inclusive electroproduction of hidden-charm and double-charm hadronic molecules
• Probing hidden-bottom pentaquarks in fixed-target collisions at the LHC
• Production of vector mesons in pentaquark states resonance channel in $p$-$A$ ultraperipheral collisions
• Near threshold heavy vector meson photoproduction at LHC and EicC
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